Pith Number

pith:R2DBJHLP

pith:2013:R2DBJHLP2RRSSIOWEAEHIIFOA4

not attested not anchored not stored refs pending

A strontium lattice clock with $3 \times 10^{-17}$ inaccuracy and its frequency

Ali Al-Masoudi, Burghard Lipphardt, Christian Grebing, Christian Hagemann, Christian Lisdat, Nathan Lemke, Nils Huntemann, Sebastian H\"afner, Stefan Vogt, Stefan Weyers, Stephan Falke, Uwe Sterr, Vladislav Gerginov

arxiv:1312.3419 v2 · 2013-12-12 · physics.atom-ph

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{R2DBJHLP2RRSSIOWEAEHIIFOA4}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-18T02:45:12.579892Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8e86149d6fd4632921d620087420ae073705d998e4a7cadddae7c0d9c175581a

Aliases

arxiv: 1312.3419 · arxiv_version: 1312.3419v2 · doi: 10.48550/arxiv.1312.3419 · pith_short_12: R2DBJHLP2RRS · pith_short_16: R2DBJHLP2RRSSIOW · pith_short_8: R2DBJHLP

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/R2DBJHLP2RRSSIOWEAEHIIFOA4 \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 8e86149d6fd4632921d620087420ae073705d998e4a7cadddae7c0d9c175581a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "72c0df9b86ba9c1e5eb4d1396cbc46d0ab3f1d4d1c95cde3d061b98aa8e81247",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.atom-ph",
    "submitted_at": "2013-12-12T08:41:28Z",
    "title_canon_sha256": "93312e6005d0638b2b5c4e24fc7e870573516ea3ba40bde0619daea6f859bc32"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1312.3419",
    "kind": "arxiv",
    "version": 2
  }
}